/**
 * The MIT License
 *
 * Copyright (c) 2010-2011 Sonatype, Inc. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package org.hudsonci.maven.plugin.dependencymonitor.internal;

import hudson.model.AbstractProject;
import hudson.model.Item;
import hudson.model.listeners.ItemListener;

import org.hudsonci.maven.plugin.dependencymonitor.DependencyMonitor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * Hook to purge records when a project is deleted.
 *
 * @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
 * @since 2.1.0
 */
@Named
@Singleton
public class ProjectDeletedHandler
    extends ItemListener
{
    private static final Logger log = LoggerFactory.getLogger(ProjectDeletedHandler.class);

    private final DependencyMonitor dependencyMonitor;

    @Inject
    public ProjectDeletedHandler(final DependencyMonitor dependencyMonitor) {
        this.dependencyMonitor = checkNotNull(dependencyMonitor);
    }

    @Override
    public void onDeleted(final Item item) {
        if (item instanceof AbstractProject) {
            AbstractProject project = (AbstractProject)item;
            log.debug("Project has been deleted; puring: {}", project);

            dependencyMonitor.purge(project);
        }
    }
}

